Fatal flaw: The solid reaction product lithium oxide (Li2O) will accumulate
at the positive electrode, blocking the contact between the electrolyte and air,
thereby causing discharge to stop. Scientists believe that the performance of
lithium-air batteries is 10 times that of lithium-ion batteries, providing the
same energy as gasoline. Lithium air batteries absorb oxygen from the air for
charging, making them smaller and lighter. Many laboratories around the world
are researching this technology, but without significant breakthroughs, it may
take another 10 years to achieve commercialization.
Advantages:
1. High energy density, theoretical energy density can reach 2600Wh/kg;
2. Low raw material cost;
3. Low energy consumption;
4. Low toxicity.
Although the research on lithium sulfur batteries has gone through decades
and has achieved many results in the past decade, there is still a considerable
distance from practical application.
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